All OHIP error & explanatory codes

Error report · Service, fee & diagnosis

OHIP error code ADH

Cannot be billed together

What ADH means

The Ministry of Health’s official wording for ADH is: “Cannot be billed together.”

This code appears on your Claims Error Report (downloaded through MCEDT). It means the claim was rejected at submission and was never adjudicated for payment — fix the issue below and resubmit the claim.

How to fix ADH

These codes can't be billed together - remove one of the conflicting codes and resubmit.

These codes relate to the fee schedule code, diagnosis code, fee amount, or service limits in the Schedule of Benefits. The fix usually starts with re-reading the code's payment rules — effective dates, age/sex limits, maximums, and combinations — for the date of service.

Related codes

Code meaning per Ontario Ministry of Health — Error Report Rejection Conditions / Error Codes (December 2022). The suggested action is general information for Ontario physicians, not billing, legal, or tax advice — codes and rules change, so verify against the current Ministry of Health documents before relying on a claim.